Feb solo hike - gear, water and advice?

Hi,
I'm planning to walk to track solo in early Feb. It's my first solo hike, and the longest trip I've ever taken, but I've done some hard hikes before and am pretty excited. I have a few questions:
Cold weather gear/clothes: I'm planning to bring my waterproof winter jacket, a good fleece, long underwear, rainproof pants, gaiters. Are all these things absolutely essential even in the middle of summer? If not, which can I leave out? Do I need a winter hat and gloves? I'm also planning on borrowing/renting/buying a good bag and pad for -5 degrees.
# of outfits to bring: Will there be opportunities to give my clothes a rinse and dry - for example, for day to day clothes - do I need to bring more than 4 pairs of wool hiking socks, 2 pairs of pants, 1 pair of shorts, and 2-3 shirts?
water: I have a katadyn hiker water filter that I normally bring - however it looks like there is a lot of good drinking water on this track that doesn't need tablets or filters - is this true? I'm really concerned about pack weight so would just bringing tablets suffice or should I pack the filter? It needs a new element and this seems to be expensive and hard to find in Aussie so if I could just use tablets or boil when in doubt that would probably be easier.
trekking poles: Are trekking poles really advantageous? I'm considering buying a 1pound tent that uses trekking poles, however I don't currently have poles as most of my gear is back in the US and I'm living in Aussie right now. Really I'd just like an excuse to get new high tech gear...but I can also probably borrow a tent that only weighs max 2 kg...1 lb is so light though....worth that extra kilo or two I may save?
I'm of course bringing all the normal essentials, stove, first aid, rope, sunscreen, hat, compass etc etc. But things like extra warm jackets, long underwear, rain gear, gaiters - normally I'd just bring a fleece and a plastic poncho and call it a day, but it seems like the weather can get pretty cold even in winter and I don't want to take any chances.
any recommendations on good camping gear in Sydney, Australia - or online, or places to get 2nd hand gear, or rent gear? A lot of the stores (Kathmandu etc) are super expensive here. My z-lite pad that I have at home (costs $30 at REI) was $85!!!!!!!!!! for a foam pad!!!!! I really need a sleeping pad that folds like an accordion as this becomes the frame for my ultra light weight pack.
I'm planning to walk to track solo in early Feb. It's my first solo hike, and the longest trip I've ever taken, but I've done some hard hikes before and am pretty excited. I have a few questions:
Cold weather gear/clothes: I'm planning to bring my waterproof winter jacket, a good fleece, long underwear, rainproof pants, gaiters. Are all these things absolutely essential even in the middle of summer? If not, which can I leave out? Do I need a winter hat and gloves? I'm also planning on borrowing/renting/buying a good bag and pad for -5 degrees.
# of outfits to bring: Will there be opportunities to give my clothes a rinse and dry - for example, for day to day clothes - do I need to bring more than 4 pairs of wool hiking socks, 2 pairs of pants, 1 pair of shorts, and 2-3 shirts?
water: I have a katadyn hiker water filter that I normally bring - however it looks like there is a lot of good drinking water on this track that doesn't need tablets or filters - is this true? I'm really concerned about pack weight so would just bringing tablets suffice or should I pack the filter? It needs a new element and this seems to be expensive and hard to find in Aussie so if I could just use tablets or boil when in doubt that would probably be easier.
trekking poles: Are trekking poles really advantageous? I'm considering buying a 1pound tent that uses trekking poles, however I don't currently have poles as most of my gear is back in the US and I'm living in Aussie right now. Really I'd just like an excuse to get new high tech gear...but I can also probably borrow a tent that only weighs max 2 kg...1 lb is so light though....worth that extra kilo or two I may save?
I'm of course bringing all the normal essentials, stove, first aid, rope, sunscreen, hat, compass etc etc. But things like extra warm jackets, long underwear, rain gear, gaiters - normally I'd just bring a fleece and a plastic poncho and call it a day, but it seems like the weather can get pretty cold even in winter and I don't want to take any chances.
any recommendations on good camping gear in Sydney, Australia - or online, or places to get 2nd hand gear, or rent gear? A lot of the stores (Kathmandu etc) are super expensive here. My z-lite pad that I have at home (costs $30 at REI) was $85!!!!!!!!!! for a foam pad!!!!! I really need a sleeping pad that folds like an accordion as this becomes the frame for my ultra light weight pack.